Introduction to Youfeng Lai Yi Hall: Enter from the north entrance. The foyer is Youfeng Lai Yi Hall. There is a passage directly down to the negative first floor. You can also go left and right to visit the exhibition hall on the first floor. The idiom "There is a phoenix coming to the ceremony" comes from "Shang Shu·Yi Ji" "Xiao Shao is 90%, the Phoenix Emperor comes to the ceremony", which is an auspicious sign in ancient times. There is a "Jing Shen" plaque in the interior of the south side of the hall, which is a copy of Kangxi's imperial inscription; on the interstitial screen is an article "Weaving the Imperial Letter Jing Fu Given by Cao Junshi", which judging from the content, was read by a colleague of Cao Xi (Cao Xueqin's great-grandfather) The Cao family’s treasured collection was written by Emperor Kangxi’s royal family and is full of praise.